Useful items for WPvP (including Censer Farming)

EDIT: Since this list is rapidly growing, I'm going to actually specify my ground rules for these items:
It cannot be an equipped item, unless it is a Shirt or Tabard
It cannot be something used every day by raiders (hint: dps potions, main stat flasks, healing potions, far too obvious)
If you normally have them in your bags, it's probably not for this list.

I'm working on a list of useful items for world PvP, and figured I'd post what I have so far:

And when you want to avoid people;http://www.wowhead.com/item=22823/elixir-of-camouflage
Hunters can just glyph aspect of the beast. It works wonders that, esspecially in a flying zone; on my 70 hunter I can hunt 70-80s with ease in northrend, even if I have 10+ 90s on my thail. The chance of them actually flying into me at the right elevation is exeedingly slim (esspecially as I see them on my minimap long befoure they can spot me).

I usually farm blood coins solo or teamed up with a friend. Since we're a warrior and retri pala, staying inland is a bad idea. Thus, staying on water and making quick precision attacks and then retreating back into the open water is how we get most of our kills. The stuff we find invaluable for this:

I usually farm blood coins solo or teamed up with a friend. Since we're a warrior and retri pala, staying inland is a bad idea. Thus, staying on water and making quick precision attacks and then retreating back into the open water is how we get most of our kills.

This looks like really good idea. Should try it later.

- - - Updated - - -

Just to add specifics :

Discomboculator ray dismounts ground mounts but not flying mounts
Frostweave net should be used since embersilk does not work against magic immune targets (AMS, clock of shadows, etc)

Just keep in mind, this method is not very action-packed. Depending on server, time of day, and luck, you can go a long time without getting any action.

However, once you get the gist of it and learn not to get overly cocky, you'll often be able to go the entire 1 hour duration of the censer buff without dying, which is IMHO a lot more fun than spending 2 mins slaughtering people and then waiting 8 mins for censer to come off cd because you got zerged by 3+ pve-ers.